The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Allegan you can determine when it's the best time to plant polka dot plant by reviewing the USDA zone info.

Planting Calendar for Polka Dot Plant

Frost tolerance for polka dot plant:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably a bad idea to plant polka dot plant until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant polka dot plant in Allegan is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant polka dot plant and expect a good harvest is probably August. Any later than that and your polka dot plant may not have a chance to really do well. If you are starting your polka dot plant indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Allegan. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Allegan is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Allegan you get a frost after April 15 so just be sure to be ready to protect your polka dot plant in the event of a surprise late frost.

USDA Zone Info for Allegan

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Allegan

You may be interested in your other planting guides for Allegan.